Failed to Subscribe to Live Query

[eunomiadev]

Invalid argument(s): handleError callback must take either an Object (the error), or both an Object (the error)

Exceptions:

Error subscibe to live query Invalid argument(s): handleError callback must take either an Object (the error), or both an Object (the error) and a StackTrace. #0      _BufferingStreamSubscription.onError (dart:async/stream_impl.dart:150:7)
#1      new _BufferingStreamSubscription (dart:async/stream_impl.dart:113:10)
#2      new _ForwardingStreamSubscription (dart:async/stream_pipe.dart:121:9)
#3      _ForwardingStream._createSubscription (dart:async/stream_pipe.dart:91:16)
#4      _ForwardingStream.listen (dart:async/stream_pipe.dart:86:12)
#5      LiveQuery.subscribe (package:parse_server_sdk/src/network/parse_live_query.dart:78:23)
<asynchronous suspension>

Code:

    var live = LiveQuery();
    final query = QueryBuilder<ParseObject>(ParseObject('Coins'));
    live.subscribe(query).catchError(
        (e, trace) => print('Error subscibe to live query $e $trace'));

SDK Version:
version: 1.0.22

[tran-huy-phuc]

@eunomiadev I am getting same error. Did you fix it yet?

[douglasmuraoka]

@phillwiggins I have faced this problem when testing the sessionToken: null problem (#196).
I changed this onError handler to receive Object instead of Error and looks like it solved the problem, but I don't know if that's a Dart good practice.

Could you please check it? If this solution works for you, I can create a PR for it.

[mdc555]

I'm also having issues when trying to subscribe to LiveQueries.
Getting this error:
Invalid argument(s): handleError callback must take either an Object (the error), or both an Object (the error) and a StackTrace. E/flutter ( 8401): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: Failed assertion: boolean expression must not be null E/flutter ( 8401): #0 Future._propagateToListeners.handleError (dart:async/future_impl.dart:649:26) E/flutter ( 8401): #1 Future._propagateToListeners (dart:async/future_impl.dart:672:24) E/flutter ( 8401): #2 Future._completeError (dart:async/future_impl.dart:491:5) E/flutter ( 8401): #3 _SyncCompleter._completeError (dart:async/future_impl.dart:55:12) E/flutter ( 8401): #4 _Completer.completeError (dart:async/future_impl.dart:27:5) E/flutter ( 8401): #5 _AsyncAwaitCompleter.completeError (dart:async-patch/async_patch.dart:40:18) E/flutter ( 8401): #6 LiveQuery.subscribe (package:parse_server_sdk/src/network/parse_live_query.dart) E/flutter ( 8401): <asynchronous suspension> E/flutter ( 8401): #7 _MyHomePageState.build.<anonymous closure> (package:parse1/main.dart:172:24) E/flutter ( 8401): #8 _AsyncAwaitCompleter.start (dart:async-patch/async_patch.dart:49:6) E/flutter ( 8401): #9 _MyHomePageState.build.<anonymous closure> (package:parse1/main.dart:149:26) E/flutter ( 8401): #10 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:511:14) E/flutter ( 8401): #11 _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:566:30) E/flutter ( 8401): #12 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:166:24) E/flutter ( 8401): #13 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:240:9) E/flutter ( 8401): #14 TapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:177:9) E/flutter ( 8401): #15 PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:436:9) E/flutter ( 8401): #16 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:73:12) E/flutter ( 8401): #17 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:101:11) E/flutter ( 8401): #18 _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:221:19) E/flutter ( 8401): #19 _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:199:22) E/flutter ( 8401): #20 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7) E/flutter ( 8401): #21 _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7) E/flutter ( 8401): #22 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7) E/flutter ( 8401): #23 _rootRunUnary (dart:async/zone.dart:1136:13) E/flutter ( 8401): #24 _CustomZone.runUnary (dart:async/zone.dart:1029:19) E/flutter ( 8401): #25 _CustomZone.runUnaryGuarded (dart:async/zone.dart:931:7) E/flutter ( 8401): #26 _invoke1 (dart:ui/hooks.dart:233:10) E/flutter ( 8401): #27 _dispatchPointerDataPacket (dart:ui/hooks.dart:154:5)
How to solve this??

[arvanus]

Same here

Parse server version: 1.0.22

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, v1.9.1-pre.98, on Microsoft Windows [versão 10.0.18362.295], locale pt-BR)

[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[√] Android Studio (version 3.3)
[√] VS Code (version 1.37.1)
[√] VS Code, 64-bit edition (version 1.26.1)
[√] Connected device (1 available)

[arvanus]

Found probable fix, (I won't make a pull request now, because I can't test right now)
edit file parse_live_query.dart
line 104
change
}, onError: (Error error) {

to:
}, onError: (error) {

[mdc555]

Yeah... I've done the same but changed to:
onError: (Object error)
and it finally worked....

[phillwiggins]

Hey Folk. I'll make that change tonight. 1.0.23 will be released with that fix too.

…

On Fri, Aug 23, 2019, 06:22 mdc555 ***@***.***> wrote: Yeah... I've done the same but changed to: onError: (Object error) and it finally worked.... — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#198>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AB4CPXRX3V6BCSXGRDUCMKDQF5XYTANCNFSM4HYUAONA> .

[mdc555]

@phillwiggins A necessary fix for this package. Love it!! 😉😉

[arvanus]

That worked? I'm so glad to help :)

[phillwiggins]

So it looks like this was already fixed on branch 'release/1.0.23'.

This will be released shortly.

[phillwiggins]

There's not been much movement on this recently. Are we safe to close?